Bolt-heading machine



(No Model.)

- 4 Sheets-Sheet 1. M. G. WILDEB.

BOLT HBADING MACHINE.

Patented July 31, 1883.

(NoModeL) 4 Sheets-Sheet 2. Q

' M. G. WILDER.

BOLT HEADING MACHINE.

j No. 282,475. Patentgd July 31, 1883.

WV WWW (No Model.) 7 4 Sheets-Sheet 3.

- M. G. WILDER.

BOLT HEADING MACHINE.

No. 282,475. Patented July 31, 1 3.

WITNES SE 5 N. PETERS. Plmla-Lilhagnphur. Walhinglcn, n. c

(No Model.) 4 SheetsShe t 4.

M. G. WILD'ER. 130m HEADING MAGHINE.

No. 282,475. Patented July 31, 1883.

' WJTJVESQES" m JNVENTMZ;

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UNITED STATES PATENT j iOriucn.

. MOSES G. WILDER, OF PHILADELPHIA, PENNSYLVANIA.

BOLT-HEADING MACHINE.

SPECIFICATION forming part of Letters Patent No. 282,475, dated July 31,1883,

' Application filed March 9,1883. (No model.)

To all whom it may concern Be it known that I, Mosns G. WILDER, acitizen of the United States, residing in Philadelphia, Pennsylvania,have invented certain Improvements in Bolt-Heading Machines, of

which the following is a specification,

My invention relates to improvements in machinery for formingbolt-heads, the nature and obj eot of my improvements being too fullyspective views of portions of the machine;

Fig. 10, Sheet 4, a transverse section on the line 7 8, looking in thedirection of theiarrow 1, Fig. 1; Fig. 11, a section on the same line,

looking in the direction of the arrow 2; Fig.

i 12, a perspective view of the turret, looking toward the rear of thesame; and Fig. 13, a perspective view of part of the clutchingmechanism. z i i To the base-plate A of the machine is secured the frameB and'the standard D. A driving-shaft,E, is adapted to bearings a a onthe frame B, near the front end of the same, and carrying a fly-wheel,b, which is also, in the present instance, a pulley for a drivingbelt.Acranked portion of this shaft is'embraced by one end of aconnecting-bar, E, the opposite end of which is hinged by a pin,.c, tothe reciprocatingplunger F, which is guided both laterally andvertically in the frame 1 B, as will be best observed in the transversesection, Fig. 10. The plunger, at and near its front end, contains acylindrical headingdie, d, which can be adjusted longitudinally in theplunger by a screw, 0, in the manner best observed in Fig. 6. Levers G Gare pivoted by a pin, f, to the rear end of the frame B, and carry attheir outer ends the dies 9 g. It is by the simultaneous movement ofthese dies toward each other simultaneously, with the forward movementof the plunger and its head ing-die, that the bolt-blank at, Fig. 6, isheaded, the heading-die crushingthe end of the bolt-blank, and the dies9 g reducingthehead to the desired shape laterally.

The manner of fitting the dies to the ends of the arms G G and ofproviding for their adjustability is shown in the perspective view, Fig.9, and need not be minutely described, as it forms no part of my presentinvention. Near the front end of each arm, at the rear of its die 9, isa recess for containing the round ed end of thefront' and short arm of alever, H, each arm being preferably made in two parts, bolted together,as indicated in Fig. 9. The two levers H H are pivoted to the frame B bypins j j, which pass freely through elongated openings in the levers G-G, and through the projections 7c 70, Fig. 10, of the frame.

To the long arm of each lever H is connected one end of a link, i, theopposite end of the link being connected to the reciprocating plunger F,the relation of these links to the levers when the plunger is retractedto its full extent being shown in Fig. 6. As the plunger reciprocates avibrating motion must be imparted to the levers-H H through the mediumof the toggle-joint links 2' i, and a vibrating motion must be impartedto the arms G G; hence the dies 9 9 must be moved alternately'from andtoward each other, the elongated openings in the said arms, throughwhich openings their pivot-pins j 9' pass, permitting this movement.

It may be well to explain here the'objects they move toward each other.For this reason the arms G G, from the dies to the pivot f, are of thelength shown.

- A cog-wheel, m, on the driving-shaft E gears into a similar wheel onthe shaft 1, Fig. 1, which.

from parallelism of the faces of the dies as 5 is geared by mitenwheelsm and m to a longitudinal shaft, 1, having its bearings in the bed ofthe machine, and, extending to the rear end of the same, carries apinion, p, gearing into a cog-wheel, p, which is adapted to turn on astud, 10 secured to the standard D, Fig. 3.

which ears into a inion J on a shaft K b P 7 7 2 a the latter havingits, hearings in the standard D and carrying the turret N, which, asdescribed hereinafter, has two dies for receiving the bolt-blanks to beheaded. On the face of the wheel J is a star-wheel, M, having fourradial grooves, t, so arranged that each groove is at right angles tothe adjoining groove. As the cog-wheel p revolves one of its pins,carrying an anti-friction roller, will enter a groove of the star,traverse that groove, and in doing so turn the wheel J until theanti-friction roller escapes from the groove, so that during everyrevolution of the wheel there will be two intermittent movements of thewheel J, which gears into the pinion J on the shaft K; but the severalwheels, through the medium of which the wheel 1) is driven, are suchthat it will make but half a revolution for every'revo lution of thedriving-shaft E, the wheel J making one-fourth of an intermittentrevolution, and the wheel J half of an intermittent revolution duringone revolution of the said driving-shaft. It will thus be seen that theshaft K, which carries the head or turret N of the machine, will makehalf a revolution, will then have an interval of rest, and then make.another half-revolution, and so on. It is essential that. this shaft Kshould be locked when at rest, for which purpose I make in the edge ofthe star-wheel fourconcaverecesses, 1), each adapted to the edge of a"segment, w, on a cogwheel, N, which is adapted to turn on the stud pand which is driven by a cog-wheel, N, on the longitudinal shaft 1. Thesegment w is of such an extent that it will always prevent thestar-wheel from turning when it is not under the influence of one orother of the the wheel It will be seen on reference to Fig. 6 that theshaft K, which carries the turret, is .out of line with the plunger andheading-die, the tur ret itself, a general view of which is shown inFig. 12, carrying two tubular shafts, T T, placed at equal distancesfrom the center of the shaft pins 9 on K, and arranged to intermittentlyturn in and bears against a projection, 2, on the standard D, so thatthe latter, and not the shaft or the turret, has to resist the action ofthe headinglution for each action of the plunger.

die d. It will be understood that I am now referring to that shaft Twhich, for the time being, is in line with the heading-die, as shown inFig. 6, on reference to which it will be seen that one end of theejector extends a short distance into a recess of the fixed abutment 2;but on reference to .Fig. 5 it will be seen that this recess is of suchsegmental form that when the time comes to turn the turret the ejectorcan pass freely from the same.

shaft K, the wheels and .pinion being so pro-- portioned that while theshaft makes one half of an intermittent revolution each shaft T makesone-quarter only of a revolution. The object of this will be understoodwhen it is remembered that the faces of the dies are flat, as shown inFig. 9, and that the four sides of the bolt-head must be presented atdifferent times to the dies. If the bolt has to have a hexagonal head,the wheels 5 5 and pin-- ion 6 must be so proportioned that each shaft Tmust make one-sixth or one-third of a revo- An opening, 7, Figs. 2, 6,and 12 extends through the turret, and this opening contains a slidingclutch-block, 8, best observed in the per spective view, Fig. 13, theblock being loose on the shaft, but compelled to turn with the turret N,the block having two fingers, 9 9, adapted to guides in the turret andproject ing rearward from the block, on the face of which are two teeth,the block and its teeth forming. with a collar, 10, provided with liketeeth, and secured to the shaft K, a clutch. A spiral spring, 11,contained in a chamber in the turret, tends to maintain the block ingear with the collar; but there is a device controlled by the attendantwhich tends to main tain the clutch out of gear with the collar, andthis consists of a wedge-shaped block, U, Fig. 8, attached to aspring-arm, U, secured to the standard D, a cord, V, attached to the endof the arm, passing over a guide-pulley, 13, to one arm of a bell-cranklever, W,whic h is loose on a rock-shaft, Y, referred to hereinafter.When the turret is just completing half a revolution, one of the fingers'9 of .the clutch-block 8 comes in contact with the inclined side of thewedge-formed block U, and hence the clutch is thrown out of gear and theturret released from the control of the shaft K, and'will remainstationary while the shaft 'A spring, 4, is retained within each shaftT, and tends revolves, the turret being retained by a small gear withthe collar 10, when the turret will make another half of a revolution,and the i of the machine, is secured a treadle, W, and

to the same shaft, on the opposite side of the machine, is secured anarm, 14, connected by a rod, 15, to an eccentric rod, L, near the outerend of the same, the front end of the rod being adapted to an eccentric,L, on the shaft I.

. c The outer end of the eccentric r'od has an L- shaped slot, adaptedto a pin on the upper end of an arm, 17, secured to the shaft Y, towhich is also secured the -lrnocking-out' arm 18, the head of the latterbeing directlyoppo'sitethat ejector R of the turret which isfarthestaway from the plunger F when the turret is stationary. When the finishedbolt has to be ejected, the attendant depresses the treadle W, andthereby raises the outer end of the eccentric rod L to the positionshown in Fig. 7-, so that the pin at theupper end of the arm 17 will bewithin the limit of the recessed portion of the L-shaped slot, andconsequently the arm 17 must be so operated by the eccentric that thearm 18, acting on the ejector, will push the headed bolt from the 'diein the turret.

tinuously and simultaneously with the C011", tinuous vibration, inopposite directions, of the side dies, 9 g, the turret-shaft will havean intermittent rotation, moving'to the extent of half arevolution, thenbecome stationary, and then complete the other half of a revolution, themovement of the turret depending upon the action of the attendant, asalso, does the ejecting of the headed bolt-blank. While the turret isstationary and the heading devices are operating on a bolt-blank in oneof the dies an attendant has time to introduce a heated blank into theother die of the turret, having first caused the ejection of a headedbolt therefrom by placing his foot on the treadle W pleted, theattendant depresses the treadle W,

and thus induces the mechanism describedabove to turn the turret to theextent of onehalf of a revolution, thereby causing the die, with theheated blank, to assume a position directly in line with theheading-plunger, while the die containing the blank already headed isopposite the ejector-arm 18.

I claim as my invention 1 c 1. The combination, in ,a bolt-headingmachine, of dies 9 g and d and mechanism for operating the same, with aturret containing two dies for receiving the bolt-blanks, adriving-shaft for rotating the said turret, and a clutch under thecontrol of the operator for clutching the shaft to and releasing it fromthe turret, substantially as described.

2. The combination of the reciprocating plunger F, the two arms G G,pivoted to the When the head of the bolt is comframe in front of theplunger, and carrying the dies 9 g, with the. levers H H, pivoted to theframe, connected to the said arms, near the outer endofthe same, and tothe plunger by links i i, all substantially as specified.

3. The combination of the plunger, the die-' I which carries the turret,mechanism for clutching the same to and unclutching it from the shaft,and mechanism whereby the said shaft i's' intermittently rotated,substantially as set forth.

5. The combination of the turret, the shaft K, and clutch-collarthereon, with the sliding block 8, adapted to an opening in the turret,and with mechanismjvhereby the unclutching of the block is placed withinthe control of an attendant, substantially as specified.

6. The combination of the spring-arm U, pivoted to the frame, andcarrying a block, U, having an inclined side, with the turret and itsclutch-box, having fingers 9 9, substantially as specified. When themachine is in operation, the plunger F and its heading-die willreciprocate con- 7. The combination of the turret, its two shafts-TT,each having an ejector, R, a collar on the ejector bearing on a shoulder011 the shaft, with an abutment, 2, on the frame, the said abutmenthaving a segmental recess for the reception of theend of the ejector,substantially as set forth. it

8,. The combination of the shaft K, the turnet, and its two shafts T T,each having a cog wheel, 5, the central wheel, 6, secured to the shaftK, and mechanism for imparting an i11- termittent rotation to the shaft,substantially as specified.

9. The combination of the shaft K and its turret, the star-wheel M,geared to the said shaft, the Wheel 10, driven from the shaft I throughthe medium of intervening gearing, and having pins adapted to thegrooves of the star-wheel, with a segment, N, which also derives itsmotion from the, said driving-shaft,

and which is adapted to concave recesses in the star-wheel,substantially as specified.

10. The combination of the turret-wheel and itsejectors R, with theejecting-arm 18 on a shaft, to which is secured the arm 17, with aneccentric on the driving-shaft, and an eccentricrod having an L-shapedslot, adapted to a pin on the said arm l7, and with mechanismconnectedwith a treadle for raising and lowering the saidrod,substantially as set forth.

In testimony whereof Ihave signed my name to thisspecification in thepresence of two subscribing witnesses.

\ MOSES G. WILDER.

Witnesses:

HARRY SMITH, HENRY HOWSON, Jr.

